package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.EmployeeService;
import io.swagger.annotations.ApiOperation;
import org.apache.poi.ss.formula.functions.T;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());


        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
     * 新增员工
     *
     * @param employeeDTO
     */
    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        //对象属性拷贝
        BeanUtils.copyProperties(employeeDTO, employee);
        //为每个员工初始化密码,以及相关配置(设置常量类以及调用加密）
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        //设置账号默认状态(设置常量类以便后期修改)
        employee.setStatus(StatusConstant.ENABLE);
//        //设置创建时间和修改时间
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setCreateTime(LocalDateTime.now());
//        //设置当前记录人id和·修改人id
//        // TODO 后期改为当前登录用户的id
//
//        employee.setCreateUser(BaseContext.getCurrentId());
//        employee.setUpdateUser(BaseContext.getCurrentId());
        //调用Mapper
        employeeMapper.insert(employee);

    }


    /**
     * 员工信息分页查询
     */
    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        //设置分页参数
        PageHelper.startPage(employeePageQueryDTO.getPage(), employeePageQueryDTO.getPageSize());
        //调用Mapper
        Page<Employee> p = employeeMapper.selectByName(employeePageQueryDTO);
        //重新封装到pageresult
        PageResult pageResult = new PageResult(p.getTotal(), p.getResult());
        return pageResult;

    }

    /**
     * 启用禁用员工账号
     */
    @Override
    public void startOrStop(Integer status, long id) {
        //
//        Employee employee = new Employee();
//        employee.setStatus(status);
//        employee.setId(id);
        //构建器
        Employee employee = Employee.builder()
                .status(status)
                .id(id)
                .build();


        employeeMapper.update(employee);

    }

    /**
     * 查询回写
     */
    @Override
    public Employee getById(Long id) {
        Employee employee = employeeMapper.getById(id);
      //不给看密码
        employee.setPassword("****");

        return employee;
    }
    /**
     * 修改员工信息
     */
    @Override
    public void update(EmployeeDTO employeeDTO) {
        //设置修改时间和修改人(方案一）
//        Employee employee= Employee.builder()
//                .id(employeeDTO.getId())
//                .username(employeeDTO.getUsername())
//                .name(employeeDTO.getName())
//                .phone(employeeDTO.getPhone())
//                .sex(employeeDTO.getSex())
//                .idNumber(employeeDTO.getIdNumber())
//                .updateTime(LocalDateTime.now())
//                .updateUser(BaseContext.getCurrentId())
//                .build();
        //设置修改时间和修改人(方案二）
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(BaseContext.getCurrentId());

        employeeMapper.updateInFo(employee);
    }
}
